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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
posix-timers are currently auto-rearmed by the kernel when the
signal of the timer is ignored so that the timer signal can be
delivered once the corresponding signal is unignored.
This requires to throttle the timer to prevent a DoS by small
intervals and keeps the system pointlessly out of low power states
for no value. This is a long standing non-trivial problem due to
the lock order of posix-timer lock and the sighand lock along with
life time issues as the timer and the sigqueue have different life
time rules.
Cure this by:
- Embedding the sigqueue into the timer struct to have the same
life time rules. Aside of that this also avoids the lookup of
the timer in the signal delivery and rearm path as it's just a
always valid container_of() now.
- Queuing ignored timer signals onto a seperate ignored list.
- Moving queued timer signals onto the ignored list when the
signal is switched to SIG_IGN before it could be delivered.
- Walking the ignored list when SIG_IGN is lifted and requeue the
signals to the actual signal lists. This allows the signal
delivery code to rearm the timer.
This also required to consolidate the signal delivery rules so they
are consistent across all situations. With that all self test
scenarios finally succeed.
- Core infrastructure for VFS multigrain timestamping
This is required to allow the kernel to use coarse grained time
stamps by default and switch to fine grained time stamps when inode
attributes are actively observed via getattr().
These changes have been provided to the VFS tree as well, so that
the VFS specific infrastructure could be built on top.
- Cleanup and consolidation of the sleep() infrastructure
- Move all sleep and timeout functions into one file
- Rework udelay() and ndelay() into proper documented inline
functions and replace the hardcoded magic numbers by proper
defines.
- Rework the fsleep() implementation to take the reality of the
timer wheel granularity on different HZ values into account.
Right now the boundaries are hard coded time ranges which fail
to provide the requested accuracy on different HZ settings.
- Update documentation for all sleep/timeout related functions
and fix up stale documentation links all over the place
- Fixup a few usage sites
- Rework of timekeeping and adjtimex(2) to prepare for multiple PTP
clocks
A system can have multiple PTP clocks which are participating in
seperate and independent PTP clock domains. So far the kernel only
considers the PTP clock which is based on CLOCK TAI relevant as
that's the clock which drives the timekeeping adjustments via the
various user space daemons through adjtimex(2).
The non TAI based clock domains are accessible via the file
descriptor based posix clocks, but their usability is very limited.
They can't be accessed fast as they always go all the way out to
the hardware and they cannot be utilized in the kernel itself.
As Time Sensitive Networking (TSN) gains traction it is required to
provide fast user and kernel space access to these clocks.
The approach taken is to utilize the timekeeping and adjtimex(2)
infrastructure to provide this access in a similar way how the
kernel provides access to clock MONOTONIC, REALTIME etc.
Instead of creating a duplicated infrastructure this rework
converts timekeeping and adjtimex(2) into generic functionality
which operates on pointers to data structures instead of using
static variables.
This allows to provide time accessors and adjtimex(2) functionality
for the independent PTP clocks in a subsequent step.
- Consolidate hrtimer initialization
hrtimers are set up by initializing the data structure and then
seperately setting the callback function for historical reasons.
That's an extra unnecessary step and makes Rust support less
straight forward than it should be.
Provide a new set of hrtimer_setup*() functions and convert the
core code and a few usage sites of the less frequently used
interfaces over.
The bulk of the htimer_init() to hrtimer_setup() conversion is
already prepared and scheduled for the next merge window.
- Drivers:
- Ensure that the global timekeeping clocksource is utilizing the
cluster 0 timer on MIPS multi-cluster systems.
Otherwise CPUs on different clusters use their cluster specific
clocksource which is not guaranteed to be synchronized with
other clusters.
- Mostly boring cleanups, fixes, improvements and code movement"
* tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
posix-timers: Fix spurious warning on double enqueue versus do_exit()
clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties
clocksource/drivers/gpx: Remove redundant casts
clocksource/drivers/timer-ti-dm: Fix child node refcount handling
dt-bindings: timer: actions,owl-timer: convert to YAML
clocksource/drivers/ralink: Add Ralink System Tick Counter driver
clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource
clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
clocksource/drivers:sp804: Make user selectable
clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions
hrtimers: Delete hrtimer_init_on_stack()
alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack()
io_uring: Switch to use hrtimer_setup_on_stack()
sched/idle: Switch to use hrtimer_setup_on_stack()
hrtimers: Delete hrtimer_init_sleeper_on_stack()
wait: Switch to use hrtimer_setup_sleeper_on_stack()
timers: Switch to use hrtimer_setup_sleeper_on_stack()
net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack()
futex: Switch to use hrtimer_setup_sleeper_on_stack()
fs/aio: Switch to use hrtimer_setup_sleeper_on_stack()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull vdso data page handling updates from Thomas Gleixner:
"First steps of consolidating the VDSO data page handling.
The VDSO data page handling is architecture specific for historical
reasons, but there is no real technical reason to do so.
Aside of that VDSO data has become a dump ground for various
mechanisms and fail to provide a clear separation of the
functionalities.
Clean this up by:
- consolidating the VDSO page data by getting rid of architecture
specific warts especially in x86 and PowerPC.
- removing the last includes of header files which are pulling in
other headers outside of the VDSO namespace.
- seperating timekeeping and other VDSO data accordingly.
Further consolidation of the VDSO page handling is done in subsequent
changes scheduled for the next merge window.
This also lays the ground for expanding the VDSO time getters for
independent PTP clocks in a generic way without making every
architecture add support seperately"
* tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
x86/vdso: Add missing brackets in switch case
vdso: Rename struct arch_vdso_data to arch_vdso_time_data
powerpc: Split systemcfg struct definitions out from vdso
powerpc: Split systemcfg data out of vdso data page
powerpc: Add kconfig option for the systemcfg page
powerpc/pseries/lparcfg: Use num_possible_cpus() for potential processors
powerpc/pseries/lparcfg: Fix printing of system_active_processors
powerpc/procfs: Propagate error of remap_pfn_range()
powerpc/vdso: Remove offset comment from 32bit vdso_arch_data
x86/vdso: Split virtual clock pages into dedicated mapping
x86/vdso: Delete vvar.h
x86/vdso: Access vdso data without vvar.h
x86/vdso: Move the rng offset to vsyscall.h
x86/vdso: Access rng vdso data without vvar.h
x86/vdso: Access timens vdso data without vvar.h
x86/vdso: Allocate vvar page from C code
x86/vdso: Access rng data from kernel without vvar
x86/vdso: Place vdso_data at beginning of vvar page
x86/vdso: Use __arch_get_vdso_data() to access vdso data
x86/mm/mmap: Remove arch_vma_name()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
Pull random number generator updates from Jason Donenfeld:
"This contains a single series from Uros to replace uses of
<linux/random.h> with prandom.h or other more specific headers
as needed, in order to avoid a circular header issue.
Uros' goal is to be able to use percpu.h from prandom.h, which
will then allow him to define __percpu in percpu.h rather than
in compiler_types.h"
* tag 'random-6.13-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
prandom: Include <linux/percpu.h> in <linux/prandom.h>
random: Do not include <linux/prandom.h> in <linux/random.h>
netem: Include <linux/prandom.h> in sch_netem.c
lib/test_scanf: Include <linux/prandom.h> instead of <linux/random.h>
lib/test_parman: Include <linux/prandom.h> instead of <linux/random.h>
bpf/tests: Include <linux/prandom.h> instead of <linux/random.h>
lib/rbtree-test: Include <linux/prandom.h> instead of <linux/random.h>
random32: Include <linux/prandom.h> instead of <linux/random.h>
kunit: string-stream-test: Include <linux/prandom.h>
lib/interval_tree_test.c: Include <linux/prandom.h> instead of <linux/random.h>
bpf: Include <linux/prandom.h> instead of <linux/random.h>
scsi: libfcoe: Include <linux/prandom.h> instead of <linux/random.h>
fscrypt: Include <linux/once.h> in fs/crypto/keyring.c
mtd: tests: Include <linux/prandom.h> instead of <linux/random.h>
media: vivid: Include <linux/prandom.h> in vivid-vid-cap.c
drm/lib: Include <linux/prandom.h> instead of <linux/random.h>
drm/i915/selftests: Include <linux/prandom.h> instead of <linux/random.h>
crypto: testmgr: Include <linux/prandom.h> instead of <linux/random.h>
x86/kaslr: Include <linux/prandom.h> instead of <linux/random.h>
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Make sure that the first read/write in hdcp2_authentication_key_exchange
are only retried when we have either DP/DPMST encoder connected,
since we do this to give docks and dp encoders some extra time to
get their HDCP DPCD registers ready only for DP/DPMST encoders as
this issue is only observed here no need to burden other encoders
with extra retries as this causes the HDMI connector to have some
other timing issue and fails HDCP authentication.
--v2
-Add intent of patch [Chaitanya]
-Add reasoning for loop [Jani]
-Make sure we forfiet the 50ms wait for non DP/DPMST encoders.
--v3
-Remove the is_dp_encoder check [Jani/Chaitanya]
-Make the commit message more clearer [Jani]
Fixes: 9d5a05f86d2f ("drm/i915/hdcp: Retry first read and writes to downstream")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241104035951.517837-1-suraj.kandpal@intel.com
(cherry picked from commit 44499559496c1dac43583f4387d38de1b612a69b)
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
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Pull 'struct fd' class updates from Al Viro:
"The bulk of struct fd memory safety stuff
Making sure that struct fd instances are destroyed in the same scope
where they'd been created, getting rid of reassignments and passing
them by reference, converting to CLASS(fd{,_pos,_raw}).
We are getting very close to having the memory safety of that stuff
trivial to verify"
* tag 'pull-fd' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (28 commits)
deal with the last remaing boolean uses of fd_file()
css_set_fork(): switch to CLASS(fd_raw, ...)
memcg_write_event_control(): switch to CLASS(fd)
assorted variants of irqfd setup: convert to CLASS(fd)
do_pollfd(): convert to CLASS(fd)
convert do_select()
convert vfs_dedupe_file_range().
convert cifs_ioctl_copychunk()
convert media_request_get_by_fd()
convert spu_run(2)
switch spufs_calls_{get,put}() to CLASS() use
convert cachestat(2)
convert do_preadv()/do_pwritev()
fdget(), more trivial conversions
fdget(), trivial conversions
privcmd_ioeventfd_assign(): don't open-code eventfd_ctx_fdget()
o2hb_region_dev_store(): avoid goto around fdget()/fdput()
introduce "fd_pos" class, convert fdget_pos() users to it.
fdget_raw() users: switch to CLASS(fd_raw)
convert vmsplice() to CLASS(fd)
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs file updates from Christian Brauner:
"This contains changes the changes for files for this cycle:
- Introduce a new reference counting mechanism for files.
As atomic_inc_not_zero() is implemented with a try_cmpxchg() loop
it has O(N^2) behaviour under contention with N concurrent
operations and it is in a hot path in __fget_files_rcu().
The rcuref infrastructures remedies this problem by using an
unconditional increment relying on safe- and dead zones to make
this work and requiring rcu protection for the data structure in
question. This not just scales better it also introduces overflow
protection.
However, in contrast to generic rcuref, files require a memory
barrier and thus cannot rely on *_relaxed() atomic operations and
also require to be built on atomic_long_t as having massive amounts
of reference isn't unheard of even if it is just an attack.
This adds a file specific variant instead of making this a generic
library.
This has been tested by various people and it gives consistent
improvement up to 3-5% on workloads with loads of threads.
- Add a fastpath for find_next_zero_bit(). Skip 2-levels searching
via find_next_zero_bit() when there is a free slot in the word that
contains the next fd. This improves pts/blogbench-1.1.0 read by 8%
and write by 4% on Intel ICX 160.
- Conditionally clear full_fds_bits since it's very likely that a bit
in full_fds_bits has been cleared during __clear_open_fds(). This
improves pts/blogbench-1.1.0 read up to 13%, and write up to 5% on
Intel ICX 160.
- Get rid of all lookup_*_fdget_rcu() variants. They were used to
lookup files without taking a reference count. That became invalid
once files were switched to SLAB_TYPESAFE_BY_RCU and now we're
always taking a reference count. Switch to an already existing
helper and remove the legacy variants.
- Remove pointless includes of <linux/fdtable.h>.
- Avoid cmpxchg() in close_files() as nobody else has a reference to
the files_struct at that point.
- Move close_range() into fs/file.c and fold __close_range() into it.
- Cleanup calling conventions of alloc_fdtable() and expand_files().
- Merge __{set,clear}_close_on_exec() into one.
- Make __set_open_fd() set cloexec as well instead of doing it in two
separate steps"
* tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: add file SLAB_TYPESAFE_BY_RCU recycling stressor
fs: port files to file_ref
fs: add file_ref
expand_files(): simplify calling conventions
make __set_open_fd() set cloexec state as well
fs: protect backing files with rcu
file.c: merge __{set,clear}_close_on_exec()
alloc_fdtable(): change calling conventions.
fs/file.c: add fast path in find_next_fd()
fs/file.c: conditionally clear full_fds
fs/file.c: remove sanity_check and add likely/unlikely in alloc_fd()
move close_range(2) into fs/file.c, fold __close_range() into it
close_files(): don't bother with xchg()
remove pointless includes of <linux/fdtable.h>
get rid of ...lookup...fdget_rcu() family
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
Driver Changes:
- Fix a NULL pointer deref (Everest K.C.)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZzcsMT_FEqBE0cAW@fedora
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.13-2024-11-15:
amdgpu:
- Parition fixes
- GFX 12 fixes
- SR-IOV fixes
- MES fixes
- RAS fixes
- GC queue handling fixes
- VCN fixes
- Add sysfs reset masks
- Better error messages for P2P failurs
- SMU fixes
- Documentation updates
- GFX11 enforce isolation updates
- Display HPD fixes
- PSR fixes
- Panel replay fixes
- DP MST fixes
- USB4 fixes
- Misc display fixes and cleanups
- VRAM handling fix for APUs
- NBIO fix
amdkfd:
- INIT_WORK fix
- Refcount fix
- KFD MES scheduling fixes
drm/fourcc:
- Add missing tiling mode
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241115165012.573465-1-alexander.deucher@amd.com
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.12-2024-11-16:
amdgpu:
- Revert a swsmu patch to fix a regression
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241116145320.2507156-1-alexander.deucher@amd.com
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This reverts commit 74e1006430a5377228e49310f6d915628609929e.
This causes a regression in the workload selection.
A more extensive fix is being worked on.
For now, revert.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3618
Fixes: 74e1006430a5 ("drm/amd/pm: correct the workload setting")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix unlock on exec ioctl error path (Matthew Brost)
- Fix hibernation on LNL due to ggtt getting lost
(Matthew Brost / Matthew Auld)
- Fix missing runtime PM in OA release (Ashutosh)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5ntcf2ssmmvo5dsf2mdcee4guwwmpbm3xrlufgt2pdfmznzjo3@62ygo3bxkock
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.12-2024-11-14:
amdgpu:
- PSR fix
- Panel replay fixes
- DML fix
- vblank power fix
- Fix video caps
- SMU 14.0 fix
- GPUVM fix
- MES 12 fix
- APU carve out fix
- DC vbios fix
- NBIO fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241114143401.448210-1-alexander.deucher@amd.com
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
bridge:
- tc358768: Fix DSI command tx
nouveau:
- Fix GSP AUX error handling
- dp: Handle retires for AUX CH transfers with GSP
- fw: Sync DMA after setup
panthor:
- Fix partial BO mappings to GPU
rockchip:
- vop: Avoid null-ptr deref in plane-state check
vmwgfx:
- Avoid null-ptr deref in surface creation
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241114142256.GA86810@2a02-2454-fd5e-fd00-4ce-489-4b34-bd1a.dyn6.pyur.net
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The pointer list->list is dereferenced before the NULL check.
Fix this by moving the NULL check outside the for loop, so that
the check is performed before the dereferencing.
The list->list pointer cannot be NULL so this has no effect on runtime.
It's just a correctness issue.
This issue was reported by Coverity Scan.
https://scan7.scan.coverity.com/#/project-view/51525/11354?selectedIssue=1600335
Fixes: 0f1fdf559225 ("drm/xe/guc: Save manual engine capture into capture list")
Signed-off-by: Everest K.C. <everestkc@everestkc.com.np>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241023233356.5479-1-everestkc@everestkc.com.np
(cherry picked from commit 2aff81e039de5b0b7ef6bdcb2c320f121f69e2b4)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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Wait for the command transmission to be completed in the DSI transfer
function polling for the dc_start bit to go back to idle state after the
transmission is started.
This is documented in the datasheet and failures to do so lead to
commands corruption.
Fixes: ff1ca6397b1d ("drm/bridge: Add tc358768 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240926141246.48282-1-francesco@dolcini.it
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240926141246.48282-1-francesco@dolcini.it
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The 'vmw_user_object_buffer' function may return NULL with incorrect
inputs. To avoid possible null pointer dereference, add a check whether
the 'bo' is NULL in the vmw_framebuffer_surface_create_handle.
Fixes: d6667f0ddf46 ("drm/vmwgfx: Fix handling of dumb buffers")
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241029083429.1185479-1-chenridong@huaweicloud.com
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eb284f4b3781 drm/nouveau/dp: Honor GSP link training retry timeouts
tried to fix a problem with panel retires, however it appears
the auxch also needs the same treatment, so add the same retry
wrapper around it.
This fixes some eDP panels after a suspend/resume cycle.
Fixes: eb284f4b3781 ("drm/nouveau/dp: Honor GSP link training retry timeouts")
Cc: stable@vger.kernel.org
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111034126.2028401-2-airlied@gmail.com
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The upper layer transfer functions expect EBUSY as a return
for when retries should be done.
Fix the AUX error translation, but also check for both errors
in a few places.
Fixes: eb284f4b3781 ("drm/nouveau/dp: Honor GSP link training retry timeouts")
Cc: stable@vger.kernel.org
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111034126.2028401-1-airlied@gmail.com
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When this code moved to non-coherent allocator the sync was put too
early for some firmwares which called the setup function, move the
sync down after the setup function.
Reported-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Tested-by: Diogo Ivo <diogo.ivo@tecnico.ulisboa.pt>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Fixes: 9b340aeb26d5 ("nouveau/firmware: use dma non-coherent allocator")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241114004603.3095485-1-airlied@gmail.com
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Fix the following drm_WARN:
[953.586396] xe 0000:00:02.0: [drm] Missing outer runtime PM protection
...
<4> [953.587090] ? xe_pm_runtime_get_noresume+0x8d/0xa0 [xe]
<4> [953.587208] guc_exec_queue_add_msg+0x28/0x130 [xe]
<4> [953.587319] guc_exec_queue_fini+0x3a/0x40 [xe]
<4> [953.587425] xe_exec_queue_destroy+0xb3/0xf0 [xe]
<4> [953.587515] xe_oa_release+0x9c/0xc0 [xe]
Suggested-by: John Harrison <john.c.harrison@intel.com>
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Fixes: e936f885f1e9 ("drm/xe/oa/uapi: Expose OA stream fd")
Cc: stable@vger.kernel.org
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241109032003.3093811-1-ashutosh.dixit@intel.com
(cherry picked from commit b107c63d2953907908fd0cafb0e543b3c3167b75)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/drivers
A few more Qualcomm driver updates for v6.13
Make the Adreno driver invoke the SMMU aperture setup firmware function,
which is required to allow the GPU to manage per-process page tables in
some firmware versions - as an example Rb3Gen2 has no GPU without this.
Add X1E Devkit to the list of devices that has functional EFI variable
access through the uefisecapp.
Flip the "manual slice configuration quirk" in the Qualcomm LLCC driver,
as this only applies to a single platform, and introduce support for
QCS8300, QCS615, SAR2130P, and SAR1130P.
Lastly, add IPQ5424 and IPQ5404 to the Qualcomm socinfo driver.
* tag 'qcom-drivers-for-6.13-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
soc: qcom: ice: Remove the device_link field in qcom_ice
drm/msm/adreno: Setup SMMU aparture for per-process page table
firmware: qcom: scm: Introduce CP_SMMU_APERTURE_ID
soc: qcom: socinfo: add IPQ5424/IPQ5404 SoC ID
dt-bindings: arm: qcom,ids: add SoC ID for IPQ5424/IPQ5404
soc: qcom: llcc: Flip the manual slice configuration condition
dt-bindings: firmware: qcom,scm: Document sm8750 SCM
firmware: qcom: uefisecapp: Allow X1E Devkit devices
soc: qcom: llcc: Add LLCC configuration for the QCS8300 platform
dt-bindings: cache: qcom,llcc: Document the QCS8300 LLCC
soc: qcom: llcc: Add configuration data for QCS615
dt-bindings: cache: qcom,llcc: Document the QCS615 LLCC
soc: qcom: llcc: add support for SAR2130P and SAR1130P
soc: qcom: llcc: use deciman integers for bit shift values
dt-bindings: cache: qcom,llcc: document SAR2130P and SAR1130P
Link: https://lore.kernel.org/r/20241113032425.356306-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Starting from LNL, CCS has moved over to flat CCS model where there is
now dedicated memory reserved for storing compression state. On
platforms like LNL this reserved memory lives inside graphics stolen
memory, which is not treated like normal RAM and is therefore skipped by
the core kernel when creating the hibernation image. Currently if
something was compressed and we enter hibernation all the corresponding
CCS state is lost on such HW, resulting in corrupted memory. To fix this
evict user buffers from TT -> SYSTEM to ensure we take a snapshot of the
raw CCS state when entering hibernation, where upon resuming we can
restore the raw CCS state back when next validating the buffer. This has
been confirmed to fix display corruption on LNL when coming back from
hibernation.
Fixes: cbdc52c11c9b ("drm/xe/xe2: Support flat ccs")
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3409
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <stable@vger.kernel.org> # v6.8+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241112162827.116523-2-matthew.auld@intel.com
(cherry picked from commit c8b3c6db941299d7cc31bd9befed3518fdebaf68)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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The GGTT looks to be stored inside stolen memory on igpu which is not
treated as normal RAM. The core kernel skips this memory range when
creating the hibernation image, therefore when coming back from
hibernation the GGTT programming is lost. This seems to cause issues
with broken resume where GuC FW fails to load:
[drm] *ERROR* GT0: load failed: status = 0x400000A0, time = 10ms, freq = 1250MHz (req 1300MHz), done = -1
[drm] *ERROR* GT0: load failed: status: Reset = 0, BootROM = 0x50, UKernel = 0x00, MIA = 0x00, Auth = 0x01
[drm] *ERROR* GT0: firmware signature verification failed
[drm] *ERROR* CRITICAL: Xe has declared device 0000:00:02.0 as wedged.
Current GGTT users are kernel internal and tracked as pinned, so it
should be possible to hook into the existing save/restore logic that we
use for dgpu, where the actual evict is skipped but on restore we
importantly restore the GGTT programming. This has been confirmed to
fix hibernation on at least ADL and MTL, though likely all igpu
platforms are affected.
This also means we have a hole in our testing, where the existing s4
tests only really test the driver hooks, and don't go as far as actually
rebooting and restoring from the hibernation image and in turn powering
down RAM (and therefore losing the contents of stolen).
v2 (Brost)
- Remove extra newline and drop unnecessary parentheses.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/3275
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: <stable@vger.kernel.org> # v6.8+
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241101170156.213490-2-matthew.auld@intel.com
(cherry picked from commit f2a6b8e396666d97ada8e8759dfb6a69d8df6380)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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GGTT mappings reside on the device and this state is lost during suspend
/ d3cold thus this state must be restored resume regardless if the BO is
in system memory or VRAM.
v2:
- Unnecessary parentheses around bo->placements[0] (Checkpatch)
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241031182257.2949579-1-matthew.brost@intel.com
(cherry picked from commit a19d1db9a3fa89fabd7c83544b84f393ee9b851f)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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In couple of places the wrong error handling goto was used to release
locks. Fix these to ensure all locks dropped on exec IOCTL errors.
Cc: Francois Dugast <francois.dugast@intel.com>
Fixes: d16ef1a18e39 ("drm/xe/exec: Switch hw engine group execution mode upon job submission")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241106224944.30130-1-matthew.brost@intel.com
(cherry picked from commit 9e7aacd8402b88394e6a83cb242901fde77a1773)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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This commit fixes the bug in the handling of partial mapping of the
buffer objects to the GPU, which caused kernel warnings.
Panthor didn't correctly handle the case where the partial mapping
spanned multiple scatterlists and the mapping offset didn't point
to the 1st page of starting scatterlist. The offset variable was
not cleared after reaching the starting scatterlist.
Following warning messages were seen.
WARNING: CPU: 1 PID: 650 at drivers/iommu/io-pgtable-arm.c:659 __arm_lpae_unmap+0x254/0x5a0
<snip>
pc : __arm_lpae_unmap+0x254/0x5a0
lr : __arm_lpae_unmap+0x2cc/0x5a0
<snip>
Call trace:
__arm_lpae_unmap+0x254/0x5a0
__arm_lpae_unmap+0x108/0x5a0
__arm_lpae_unmap+0x108/0x5a0
__arm_lpae_unmap+0x108/0x5a0
arm_lpae_unmap_pages+0x80/0xa0
panthor_vm_unmap_pages+0xac/0x1c8 [panthor]
panthor_gpuva_sm_step_unmap+0x4c/0xc8 [panthor]
op_unmap_cb.isra.23.constprop.30+0x54/0x80
__drm_gpuvm_sm_unmap+0x184/0x1c8
drm_gpuvm_sm_unmap+0x40/0x60
panthor_vm_exec_op+0xa8/0x120 [panthor]
panthor_vm_bind_exec_sync_op+0xc4/0xe8 [panthor]
panthor_ioctl_vm_bind+0x10c/0x170 [panthor]
drm_ioctl_kernel+0xbc/0x138
drm_ioctl+0x210/0x4b0
__arm64_sys_ioctl+0xb0/0xf8
invoke_syscall+0x4c/0x110
el0_svc_common.constprop.1+0x98/0xf8
do_el0_svc+0x24/0x38
el0_svc+0x34/0xc8
el0t_64_sync_handler+0xa0/0xc8
el0t_64_sync+0x174/0x178
<snip>
panthor : [drm] drm_WARN_ON(unmapped_sz != pgsize * pgcount)
WARNING: CPU: 1 PID: 650 at drivers/gpu/drm/panthor/panthor_mmu.c:922 panthor_vm_unmap_pages+0x124/0x1c8 [panthor]
<snip>
pc : panthor_vm_unmap_pages+0x124/0x1c8 [panthor]
lr : panthor_vm_unmap_pages+0x124/0x1c8 [panthor]
<snip>
panthor : [drm] *ERROR* failed to unmap range ffffa388f000-ffffa3890000 (requested range ffffa388c000-ffffa3890000)
Fixes: 647810ec2476 ("drm/panthor: Add the MMU/VM logical block")
Signed-off-by: Akash Goel <akash.goel@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241111134720.780403-1-akash.goel@arm.com
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
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There is a strapping issue on NBIO 7.7.0 that can lead to spurious PME
events while in the D0 state.
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20241112161142.28974-1-mario.limonciello@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 447a54a0f79c9a409ceaa17804bdd2e0206397b9)
Cc: stable@vger.kernel.org
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This reverts commit 694c79769cb384bca8b1ec1d1e84156e726bd106.
This was not the root cause. Revert.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: aurabindo.pillai@amd.com
Cc: hamishclaxton@gmail.com
(cherry picked from commit 3c2296b1eec55b50c64509ba15406142d4a958dc)
Cc: stable@vger.kernel.org # 6.11.x
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The static declaration causes the check to fail. Remove it.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Fixes: 00c391102abc ("drm/amd/display: Add misc DC changes for DCN401")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamish Claxton <hamishclaxton@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: aurabindo.pillai@amd.com
Cc: hamishclaxton@gmail.com
(cherry picked from commit 91314e7dfd83345b8b820b782b2511c9c32866cd)
Cc: stable@vger.kernel.org # 6.11.x
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That is just a waste of time on APUs.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3704
Fixes: 216c1282dde3 ("drm/amdgpu: use GTT only as fallback for VRAM|GTT")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit e8fc090d322346e5ce4c4cfe03a8100e31f61c3c)
Cc: stable@vger.kernel.org
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There is a strapping issue on NBIO 7.7.0 that can lead to spurious PME
events while in the D0 state.
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20241112161142.28974-1-mario.limonciello@amd.com
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This reverts commit 2551b4a321a68134360b860113dd460133e856e5.
This was not the root cause. Revert.
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: aurabindo.pillai@amd.com
Cc: hamishclaxton@gmail.com
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The static declaration causes the check to fail. Remove it.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Fixes: 00c391102abc ("drm/amd/display: Add misc DC changes for DCN401")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamish Claxton <hamishclaxton@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: aurabindo.pillai@amd.com
Cc: hamishclaxton@gmail.com
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That is just a waste of time on APUs.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3704
Fixes: 216c1282dde3 ("drm/amdgpu: use GTT only as fallback for VRAM|GTT")
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This is for MES to limit only one process for the user queues
Signed-off-by: Shaoyun Liu <shaoyun.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Grab the intel_display from 'encoder' rather than 'state'
in the encoder hooks to avoid the massive footgun that is
intel_sanitize_encoder(), which passes NULL as the 'state'
argument to encoder .disable() and .post_disable().
TODO: figure out how to actually fix intel_sanitize_encoder()...
Fixes: ab0b0eb5c85c ("drm/i915/tv: convert to struct intel_display")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241107161123.16269-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
(cherry picked from commit dc3806d9eb66d0105f8d55d462d4ef681d9eac59)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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All MTL and ARL SKUs share the same GSC FW, but the newer platforms are
only supported in newer blobs. In particular, ARL-S is supported
starting from 102.0.10.1878 (which is already the minimum required
version for ARL in the code), while ARL-H and ARL-U are supported from
102.1.15.1926. Therefore, the driver needs to check which specific ARL
subplatform its running on when verifying that the GSC FW is new enough
for it.
Fixes: 2955ae8186c8 ("drm/i915: ARL requires a newer GSC firmware")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241028233132.149745-1-daniele.ceraolospurio@intel.com
(cherry picked from commit 3c1d5ced18db8a67251c8436cf9bdc061f972bdb)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Correct kiq unmap queue timeout value.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit cfe98204a06329b6b7fce1b828b7d620473181ff)
Cc: stable@vger.kernel.org # 6.11.x
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The coherency flags can only be determined when the BO is locked and that
in turn is only guaranteed when the mapping is validated.
Fix the check, move the resource check into the function and add an assert
that the BO is locked.
Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: d1a372af1c3d ("drm/amdgpu: Set MTYPE in PTE based on BO flags")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 1b4ca8546f5b5c482717bedb8e031227b1541539)
Cc: stable@vger.kernel.org
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Currently, the pp_dpm_mclk values are reported in descending order
on SMU IP v14.0.0/1/4. Adjust to ascending order for consistency
with other clock interfaces.
Signed-off-by: Tim Huang <tim.huang@amd.com>
Reviewed-by: Yifan Zhang <yifan1.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d4be16ccfd5bf822176740a51ff2306679a2247e)
Cc: stable@vger.kernel.org
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H264 supports 4096x4096 starting from Polaris.
HEVC also supports 4096x4096, with VCN 3 and newer 8192x4352
is supported.
Signed-off-by: David Rosca <david.rosca@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 69e9a9e65b1ea542d07e3fdd4222b46e9f5a3a29)
Cc: stable@vger.kernel.org
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At some point, the IEEE ID identification for the replay check in the
AMD EDID was added. However, this check causes the following
out-of-bounds issues when using KASAN:
[ 27.804016] BUG: KASAN: slab-out-of-bounds in amdgpu_dm_update_freesync_caps+0xefa/0x17a0 [amdgpu]
[ 27.804788] Read of size 1 at addr ffff8881647fdb00 by task systemd-udevd/383
...
[ 27.821207] Memory state around the buggy address:
[ 27.821215] ffff8881647fda00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 27.821224] ffff8881647fda80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 27.821234] >ffff8881647fdb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 27.821243] ^
[ 27.821250] ffff8881647fdb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 27.821259] ffff8881647fdc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 27.821268] ==================================================================
This is caused because the ID extraction happens outside of the range of
the edid lenght. This commit addresses this issue by considering the
amd_vsdb_block size.
Cc: ChiaHsuan Chung <chiahsuan.chung@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit b7e381b1ccd5e778e3d9c44c669ad38439a861d8)
Cc: stable@vger.kernel.org
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If the nominal VBlank is too small, optimizing for stutter can cause
the prefetch bandwidth to increase drasticaly, resulting in higher
clock and power requirements. Only optimize if it is >3x the stutter
latency.
Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 003215f962cdf2265f126a3f4c9ad20917f87fca)
Cc: stable@vger.kernel.org
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[Why]
In the case where a dml allocation fails for any reason, the
current state's dml contexts would no longer be valid. Then
subsequent calls dc_state_copy_internal would shallow copy
invalid memory and if the new state was released, a double
free would occur.
[How]
Reset dml pointers in new_state to NULL and avoid invalid
pointer
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Ryan Seto <ryanseto@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit bcafdc61529a48f6f06355d78eb41b3aeda5296c)
Cc: stable@vger.kernel.org
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[Why]
In certain use case such as KDE login screen, there will be no atomic
commit while do the frame update.
If the Panel Replay enabled, it will cause the screen not updated and
looks like system hang.
[How]
Delay few atomic commits before enabled the Panel Replay just like PSR.
Fixes: be64336307a6c ("drm/amd/display: Re-enable panel replay feature")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3686
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3682
Tested-By: Corey Hickey <bugfood-c@fatooh.org>
Tested-By: James Courtier-Dutton <james.dutton@gmail.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit ca628f0eddd73adfccfcc06b2a55d915bca4a342)
Cc: stable@vger.kernel.org # 6.11+
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Panel Replay feature may also use the same variable with PSR.
Change the variable name and make it not specify for PSR.
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c7fafb7a46b38a11a19342d153f505749bf56f3e)
Cc: stable@vger.kernel.org # 6.11+
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Support for per-process page tables requires the SMMU aparture to be
setup such that the GPU can make updates with the SMMU. On some targets
this is done statically in firmware, on others it's expected to be
requested in runtime by the driver, through a SCM call.
One place where configuration is expected to be done dynamically is the
QCS6490 rb3gen2.
The downstream driver does this unconditioanlly on any A6xx and newer,
so follow suite and make the call.
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Link: https://lore.kernel.org/r/20241110-adreno-smmu-aparture-v2-2-9b1fb2ee41d4@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Correct kiq unmap queue timeout value.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add vcn and jpeg error count parsing.
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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New features require the new fields defines
Signed-off-by: Shaoyun Liu <shaoyun.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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